Depending on how you look at some of these factors involved, it's either simple or complicated:

• Modern Turkey does recognize that there were wide-spread massacres by the Ottomans and under their direction, the Kurds.

• Modern Turkey as a nation-state did not exist at the time. The Ottomans were defeated and dissolved

• Genocide is an ugly word, which implies intent to wipe out. The modern Turkish nation-state denies that there was such intent ... and doesn't want to apologize because it wasn't them anyway.

• The modern Turkish nation-state claims that the (1915, largely) massacres were part-and parcel of WWI and something to do with Tehcir Law. Again: "not us".

From what I can gather every year on Apr 24, there are growing "demonstrations" to publicly support the "We Apologize" petition(s).

And, it was one hundred years ago. And geo-political stances are complicated - for example, Israel apparently doesn't recognize it (although you'd guess they'd be right on it) because they have a delicate alliance with Turkey and they don't want to rock the boat.

References: Everything I have ATM is scattered paper form not with me. I can source/cite this weekend, but if anyone beats me to the punch, feel free to delete/kill this comment. In fact, if I see anyone beat me to the punch, I will happily delete it myself! :-)

Hello! The Armenian Genocide has come up before here. Not to discourage others from answering the question, but I would highly recommend you check out this older thread, especially /u/yodatsracist response to my own comment there.

This question hasn't been removed because it's about time since the early 20th century, only a small subset of which falls under our 20-year rule. However, please stay away from discussion of the more recent political goings-on.

Thanks!